Accounting machine



o. J. sUNDsTRAND 2,229,905 l ACCOUNTING MACHINE Filed Oct. 3l, 1954 ll Sheets-Sheet l Jan' 28, 1941- o. J. sUNDsTRAND ACCOUNTING MACHINE Filed OCT.. 31, 1934 llSheets-Sheet 2 mm NNN www Jan.. 28, 1941. o. J. sUNDsTRAND 2,229,905

ACCOUNTING MACHINE I Filed oct. s1, Y19:54 11 Smets-sheet s wenfor ty Uscar J. Supa/strand Jil@ O. J. SUNDSTRAND Jan. 2s, 1941.

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ACCOUNTING MACHINE l Filed OCI.. 5l. 1934 11 Sheets-Sheet 8 AUOMAT/c PR//vT/NG OF PR//VTED FROM KEYBOARD vAMOUNT FROM TAPE TRANSFERRED TO TAPE O'OOoOOoooO-o OOIOO `l K Lu 4 101 O Q (5- I- 5. E 2 4 2 Y g LL, 5 E i 2 a', Y E U l l E S Q s 0 N Q A I Q5 2 :E t I C k Q Bf D `o 0 I t I I I *l PREVIOUS READING PRESENT READING CONSUMPTION Jan. 28, 1941. o. J'. sUNDsTRAND ACCOUNTING MACHINE Filed Oct. 3l, 1934 1l Sheets-Sheet 9 Sumfstmm Jan, 28, 1941. o. J. sUNDsTRAND ACCOUNTING MACHINE Filed Oct. 5l. 1934 l1 Sheets-Sheet l0 mmm www

Jfwenlor Sunaism Oswml Jan. 28, 1941. o; J. sUNDsTRAND 2,229,905

ACCOUNTING MACHINE Filed Oct. 31, 1934 11 Sheets-Sheet ll OscarJSund'smd Patented Jan. 28, 1941 UNITED STATES PATENT OFFICE ACCOUNTING TMACmE Application October 31, 1934, Serial No. 750,779'

iiciaims.

The invention relates generally to new and useful improvements inl accounting machines. Accounting practice frequently involves the maintenance of running accounts, that is, accounts which are carried from month to month, either with or Without a complete settlement of the account being effected at the conclusion of each such month.

Thus, it becomes necessary, in determining the charge to be rendered against any particular account in a given month, to carry forward the debit or credit balance of that account from the preceding month.

One species of this generic form of accounting arises in connection with public utility billing, in which the customers consumption of the commodity, such, for example, as gas or electricity, is calculated on the basis of the diierence between the prior and current months readings of a meter arranged to cumulatively register total consumption. l

It is accordingly an object of the present invention to provide new and improved means for the production of records of account which represent a given months charges as determined by, and related to, the charge rendered in a preceding month.

A further object resides in the provision of a machine of the above. character-adapted to simultaneously print, register and store an amount representative of a given current charge.

Yet another object of the invention is the provision of a unitary machine automatically operable to print, and register, an amount representative of a previously rendered charge 'Linder control of a permanent record in the forni of a perforated tape. v

Other objects and advantages of the presentA being broken away to Abetter disclose particular elements; v

Fig. 2 is a right'hand elevational View showing the machine in a neutral or rest position;

Fig. 3 isa sectional view taken on the lines 3+3 of Fig. 2;

Fig. 4 is a fragmental right hand elevation of certain'parts ofthe machine showing the opertain removable unit being shown as removed. from operative position and certain other parts ation of recording a new amount in a tape by means of perforations;

Fig. 5 is an elevational view similar to Fig. 4 but showing the operation of setting up the old amount under the control of a perforated tape;

Fig. 6 is a plan view of one form of actuating mechanism;

Fig. '7 is a vertical sectional view taken on the lines 'l--l of Fig. 6;

' Fig. 8 is a fragmentary plan view of partei the .mechanism shown in Fig. 6;

Fig. 91s a perspective view of the carriage actuated linlrage adapted to control a machine function;

Fig. 10 is a fragmental detail of part'of the mechanism shown in Figs. 4 and 5;

Fig. 1l is a fragmental view of the mechanism shown in Fig. lo, parts being in a position corresponding with Fig. 2;

Fig. l2 is a fragmental plan view of a preferred form of tape shiftingY mechanism;

Fig. 13 is a left-hand elevation of certain parts of the mechanism shown in Fig. l2;

Fig. i4 is a detailed elevational View taken on the line id iii of Fig. i2;

Fig. l5 is a vertical elevational view taken on the line i--iii of Fig. l2;

Fig. 16 is a sectional view Yof certain of the mechanism shown in Figs. lll and 18;

Fig. 17 is a fragmentary view similar to Fig. 16 but showing parts of the mechanism of Eg. 14'not included in i6;

Fig. 18 is a fragmented perspective View of means to operate the mechanism shovrn in Ngs. le, 16 and i7;

v Fig. 19 is a specimen of one kind4 of work adapted to be performed on a machine -embodying the invention; and v Fig. 20 is a diagrammatic plan view oi an operation made preparatory to placing the` machine in condition for recording a series oi old amounts, or previous meter readings.

Figure 2.1. is a fragmental view illustrating the means for adjusting the totalizer for ad'ition or subtraction, the parte being shown adiusted for addition and the main reci: .shaft being illustrated as having just begun to maire its forward stroke.

dit

Figure 22 is a similar view, but showing the 'positions assumed at the 'beginning ot the return f of the rock shaft.

Figure 23 illustrates the positions assumed during non-addition,l the main rock shaft having just commenced its return stroke.

Figure 2li illustrates a later stage in the return stroke of the main rock shaft during non-addition.

Figure 25 is a detailed view of the crank arm and pawl carried by the main rock shaft for controlling the totalizer. Y

Figure 26 is a fragmental perspective view illustrating the non-add, sub-total and total mechanism of the ttalizer, the parts being shown in the positions occupied when the main rock shaft is at the end of its forward stroke in the taking of a sub-total.

Figure 27 is a fragmental perspective view illustrating the subtraction key and its connections with the totalizer, the parts being shown in the position occupied when the main rock shaft is at the end of its forward stroke in the operation of subtracting an item.

Figure 28 is a fragmental view sho-Wing the counter pimons engaged with the subtracting racks.

Figure 29 is a fragmental view looking from the right-hand side of Figure 28.

The invention is herein exemplified in a machine of the general character disclosed in the Sundstrand application Serial No. 581,800, filed December 18, 1931, now' Patent No. 2,194,270, dated March 19, 1940.

Reference may be had tothe above-mentioned application for an understanding of features not fully illustrated or described herein. It should, however, be understood that 'the present invention is not limited to machinesof the Sundstrand type.

The machine illustrated includes a platen i0, mounted in paper carriage i l, arranged for movement relative to a group of type bars i2.

Referring now Yto the means for setting up new amounts: f

Ihe means herein shown to limit the extent to which the type bars may'rise, and so determine which numerals shall' be brought to printing position, includes a stationary group of stops' i3, which may be similar to those fully disclosed in the lSundstrand Patents Nos. 1,198,487l and 1,583,102, as well as in the beforementioned Sundstrand application. When. moved v rearwardly from the position shown in Figure 2,'the stops are interposed in the path of movement of devices carried by the type bars and thereby limit upward movement of the latter. These devices consistof arms i4, pivoted to the lower portions of the type bars and stop pins i5, connected tothe forward ends of the arms ill. The pins l5 are guided for vertical movement in a slide it?, which is mounted on a stationary guide rod il, extending transversely of the machine. The guide rod il is so positioned with reference to the group of stops i3, that the (slide i0 is movable to carry the pins i5 fromv their normal or initial position at the left hand side of the group of stops i3 into vertical alignment with the columns of stops.

The means for projecting the stops i3 into the path of the pins i5, comprises numeral keys i8 (Figr 1) and a series of push pins (not shown) arranged to be projected rearwardly by the keys.

The stop pins i5, and consequently the type bars, are normallyprevented from 'rising excepting in those instances in which an amount is entered in the key board, by a detent plate 20, which is positioned below and to one side of the group of stops i8 and is adapted to'be moved rearwardly and forwardly, into and out of the path of said pins, by means fully disclosed in my abovementioned application and generally indicated herein at 2i (Fig. 4)

tion occurs in the down stroke of racks 23, subtraction is effected during the downward stroke of racks 24, positive total-taking occurs in the up stroke of the racks 23, and negative total-taking is done in the up stroke of the racks 24, the pinions being moved into meshing engagement with either set of racks in timed relation with upward or downward movement thereof as the case may be. It will be understood that the totalizer normally occupies a position in engagement with the adding racks. It will further be evident that the movement of the totalizer into meshing engagement with either of its respective sets of racks may be accomplished by means such as are fully disclosed in my applications Serial Nos. 581,800 and 118,628 (now Patent No'. 2,088,982, dated Aug. 3, 1937)', or my Patent No. 1,885,489.

The several operative organizations of the machine are articulated, as fully disclosed in my before-mentioned applications, to a main rock shaft 25 (Figs 2, 4, 5), which may in turn be actuated manually, or as in the present disclosure, by means of an electric motor 'I8 (Fig. 2). The motor 78 runs continuously until stopped by a time switch, as explained in application Serial No. 581,800. A link 26, driving cam 44, and a gear reduction unit 2l, provide a driving connection between the motor 'I8 and a crank 28 rigid with the rock shaft 25.

Referring now to the mechanism for setting up old amounts: When an old amount is to be printed on the bill and accumulated in the totalizer 22, the rising movement of the type bars is controlled by means of a special group of stops comparable to the group of stops i3, the setting of which special stops is effected by springs which are controlled by a perforated tape, This tape is automatically perforated at the time that the new items are entered in the machine in connection with the preparation of a bill. At a subsequent time, when another bill is to be prepared, and it is desired to print on that bill the old amount,

, the tape thus perforated is utilized to control the setting of the special stops so as to effect the printing and accumulation of the old amount. It will thus be understood that whenever a bill is prepared, the new item is recorded in the form of perforations in a new amount tape, and the old amount is printed and accumulated under the grooves formed in the corresponding edges of a base plate 33.

As indicated above, the invention includes the provision of means to permanently record or store an amount entered in the machine, as well as means sensitive to such a permanent or stored record to automatically control an operation of the machine.

'I 'o this end a tape 34 (Figs. 1 and 3), hereinafter designated the new amount tape, is operatively supported on the base 33 in juxtaposition to a tape 35 subsequently referred to as the old amount tape.

Referring particularly to Figures 1, 3 and 12, the new amount tape is supported for movement relative to the base, upon a winding reel 36 and an unwinding reel 31, the old amount tape being carried by reels 38 and 39, which are similar in all respects to the reels 36 and 31. As shown in Figures 3 and 15, the reels 36, 31, 38 and 39, comprise top and bottom discs 40 and 4l, spaced apart by tubular body portions 42 which in turn are adapted to be journaled upon spindles 43 rigidly secured to and projecting vertically from the base33.

The respective reels are removably secured to the spindles 43 by levers 44 pivotally connected to the upper surface of the top discs 40, eccentrically of the axes thereof and provided with notches 44a Y arranged to engage in annular grooves formed adjacent the upper ends of the spindles.

The movement of the new amount tape from its unwinding to its winding reel is guided and controlled by drums 45 and 46 and the movement of the old amount tape is similarly controlled by drums 41 and 48. Displacement, or slipping of the tapes, with respect to the drums, is prevented in the present instance by rows of spaced guide teeth 49 formed integrally with the surfaces of the several drums preferably adjacent their respective upperedges, for cooperation with similarly spaced rows of apertures 50, (Fig. 19) previously formed in the tapes. In order to compel the operator properly to arrange the tapes in the machine, there is a gap in the series of teeth 49, as shown in Fig. 3, and corresponding interruptions in the series of apertures 56, as shown in Fig. 19.

The drums 46 and 48 (Fig. 3) are in effect, idler guides, and are freely journaled on spindles 53 and 54 rigid with the base and extending parallel to the axes of the respective reels 36, 31, 38 and 39. Y l

Both new and old amount tapes are adapted to be advanced predetermined increments in each cyclic operation of the machine. To this end the drums 45 and 41 (Fig. 14) are freely journaled on spindles 5l and 52 fixed to the base 33 and formed at theiruppenends with collars adapted to prevent displacement of their respective drums. As shown in Figures 16 and 17, the spindles 5| and 52 are fitted with similar telescoping sleeves 55 and 56, which act to space the drums from the base and serve at the same time as bearing surfaces for similar pinions 51 and 58, arranged for meshing engagement with a rack bar 59 slidably supported in a boss 60 extending longitudinally of the base plate 33.

The drums 45 and 41 are adapted to be drivingly engaged with their respective pinions 51 and 58. As shown particularly, in Figures 14, 16 and`1'7, the drums carry similar spring-pressed plungers 6I and 62, adapted for movement longitudinally of their respective axes in bores extending substantially parallel With the axes of the drums. '6,2 ,are yieldingly projected into operative engagement with cam notches 63 and 64, which in turn are formed in upwardly extending hub portions 65 and 66 of the respective pinions.

The pinions 51 and 58 are yieldingly urged into position to co-act with the plungers 6I and 62. As shown in Fig. 14, such means in the present embodiment of the invention comprises a leaf spring 51 anchored to an upstanding boss formed the respective pinions.

The lower ends of plungers 6l ano.

integrally with the base to permit its respective ends to freely act upon the under surfaces of flanged collars 68 and 69, which depend from It will be evident that the spring 61 will normally tend to elevate the respective pinions into position to cause their cam notches to co-act with the plungers 6l and 62.

As will be observed from an examination of Figs. 12 and 14, the cam notches 63 and 64 are effective to provide uni-directional driving engagement between the pinions 51 and 58, and drums 45 and 41.

As shown by the direction of the arrows in Fig. 3, both tapes are advanced from right to left,

from their respective unwlnding reels to the winding reels. Thus the winding drum 45 must rotate in a clockwise directio'n whereas the drum 41 is required to rotate in a counter-clockwise direction.

The previously described spring-pressed plungers 6I and 62, in cooperation with the camnotched hubs 65 and 66 of the pinions 51 and 58 are el'ective to accomplish this result in each reciprocation of the rack 59. As will be evident from an inspection of Fig. 14, a forward movement of the rack bar 59 from the position shown in Fig. 12, will be communicated to pinion 51, and through the vertical edge of cam notch 63, to plunger 6|, to rotate drum 45 in a clockwise direction. Conversely, a forward movement of rack 59 from the position shown in Fig. 12 will cause an idle movement of pinion 58 with respect to drum 41 since the plunger 62 will drop into the cam notch and ride idly out of it along its camming surface at the completion of each revolution of the pinion.

yio

During the rearward stroke of rack bar 59l the pinion 51 will move idly with respect to drum 45, whereas pinion 58 will be drivingly connected to drum 41 through its plunger 62. Thus in each ,reciprocation of rack bar 59 the new amount and old amount tapes may be advanced a given increment through the medium of their respective driving drums.

Rotary movement of the drums 45 and 41 is frictionally communicated to the respective winding reels 36 and 38 to store the tapes thereon.

Referring particularly to Figs. 12, 14 and 15, belts 16 and 1l, engaging the ,lower peripheral surfaces of drums 45 and 41, are lead over similar pulleys 12, freely journaled on the spindles 43,

lintermediate the lower end walls of the winding reels, and suitable thrust bearings 13, defined by the end surfaces of upwardly extending hubs 14 formed integrally with the base.

Studs 15, xed to the bottom disc 4I of the Winding spools and projecting therebelow, are adapted to be received in suitable apertures formed in upper end plates 16 of the pulleys 12, to provide a driving engagement between the latter and their respective winding reels. It will be evident that the driving engagement between the winding reels and their respective driving pulleys is such as to permit ready removal and replacement of the latter.

The rack 59 is adapted to be once reciprocated and` brought to rest in a predetermined position as is shown in Fig. 12 as an incident to each cyclic operation of the machine; that is to say, the drive for the tapes is capable of advancing them la uniform distance for each cycle of operations of the machine, but, in practice, the tapes. are advanced only as needed. 1n the present embodiment of the invention automatic means under occupying a horizontal plane.

control of the laterally movable paper carriage is effective to initiate a reciprocation of the rack 59, but it will be understood that manual means might additionally be employed to accomplish the same rsult. Referring to Figs. 6 and 7, a. worm 11, drivingly connected to the motor 18' (Fig. 2) by pulleys 19, 80 and belt 8|, is in constant meshing engagement with a worm wheel 82 (Fig. 7) loosely journaled on a stub shaft 83 rigid with the housing 29.

Overlying and fixed to the worm wheel 82 is a notched disc 84 which in turn is surmounted by a. crank disk 85 journaled on shaft 83 and of greater diameter than the disc 84. l

Adjacent its peripheral edge the crank disk is provided with a pivoted dog 86, normally urged in a counterclockwise direction as is viewed in Fig. 6 by a spring 81, to provide a driving engagement between disc 84 and crank disk 85.

A pawl 88 pivoted at 89 to a stationary part of the machine is urged in a counterclockwise direction by a spring 90 into engagement with a shoulder 9| formed on the peripheral edge of crank disk 85.

The dog 86 is released to the action of its spring 81 tor establish a driving engagement between the notched disc 84 and crank disk 85 by means under control of the laterally movable paper V carriage Referring particularly to Figs. 2, 6,-and 9, a lever 92 pivoted to a stationary part of themachine at 93, is normally urged by a spring 92a in' a' clockwise direction as viewed in `Fig. 9, to raise a laterally turned end 94 into the path of an arm of the-dog 86 to retain the latter in the position shown in dotted .lines in Fig. 6. The opposite end of lever 92is operatively connected to a lever 95 pivoted tothe machine at 96, by means of a link- 91 The rearward end of.` lever 95 underlies a push rod 98.

'I'he push rod 98, as shown in Fig. 2, is arranged to be depressed, to lower the end 94 of lever 92 against the action of the spring 92a, as an incident to lateral movement of the paper carriage.

Rigid with the paper carriage is a control plate extending longitudinally of the carriage and 'Ihe plate |00 is adapted to support a plurality of control elements |0|, the form and construction of which may, for example, be identical with that disclosed in my before-mentioned application Serial No. 581,800. Each of the several control elements, as is described in said application, may be adjustably positioned on the control plate and equipped with one or more stop'lugs (not shown), arranged to travel in a plurality of-parallel paths defined by a group ofselectors |02 (Figs. 1, 2 and 26) pivotally supported at |02a on the frame of the machine in underlying relation with respect to the control plate. The push rod 98, as will be seen in Fig. 2, underlies the right-hand one of the selectors |02, so that depression of that selector by a stop lug in any position of the carriage will function to displace the laterally turned end 94, of the lever 92, from its normal position in which it prevents engagement of thedog 86 with the disc 84, thus initiating a reciprocation of rack bar 59. Upon the completion of one revolution of the crank disk 85, the dog 86 is disengaged from the constantly rotating disk 84 by the projection 94, as shown invFig. 8, the crank disk being thereby brought to -rest in the position shown in Fig. 6 and held in that position bythe spring 81 and the pawl 88.

A disengageable driving connection is provided between the crank disk 85 and rack bar 59 to permit the removal of base 33 from the machine. As shown in Figs. 3, 6, 7, 12 and 13, such connection is provided in this instance by a pitman |03, eccentrically pivoted to the crank disk 85 at |04 and detachably connected to the rack 59 by a pin (Fig. 13) arranged to engage a slot |06 adjacent the rear end of the rack and opening toward the left as viewed in Fig. 12. I

To prevent displacement of the pitman |03 while the base is Withdrawn and so render difficult the reestablishing of a driving connection between the pitman and rack when the base is replaced, the pin |05 is elongated to project into bearing engagement with a guide slot |06 formed in a boss |01, which is rigid with the frame of the machine as particularly showninFig. 13. It will be obvious that when the base'is withdrawn the pitman arm will be retained in a position to re-engage the rack when the base is again restoredv to operative position in the machine.

Manual means is provided to disable automatic advancing of the new and old amount tapes. Referring to Figs. 1, 17, and 18, a new amount key |08 is eiective to lower the pinion4 51 out .of the path of the plunger 6|', and thus prevent movement of the rack 59 from being communicated to drum 45. As shown particularly in Fig. 18, the stem |09 of new amount key |08, overlies the laterally turned vupper end of a link ||0, which in turn is pivotally connected to an arm of abail ||2 operatively supported on a longitudinal shaft ||3. Arms ||4 of a yoke formed integrally with bail 2, embrace diametrically opposite sides of the flanged collar 68, of the pinion 51. As 4clearly shown/'in Figl 17, depression of/the new. amount key functions to rotate bail-'H2 and its associated yoke H4 in a clockwise direction, to lower the pinion against the action of its spring 61 until its cam notch is out of the path of plunger 6|. In this connection, it will be observed that the teeth of rack 59 are of suiicient width 4to maintain meshing engagement with the pinion when the latter occupies either its upper or lower positions. To prevent removal of the b ase without previously elevating the pinion 51 to operative position with respect to plunger 6|, the yoke ||4 is formed with a downwardlyturned lug I5, adapted to engage a longitudinal slot ||'6, provided in the base 33 adjacent its left-hand l,edge as viewed in Fig. 17. It will be evident that lug |5 will function to Yprevent removal of the base so long as the pinion 51 occupies its lower position, so that the new amount key must be released to permit the pinion to rise, to position the square shoulder of the cam notch 63 in the path of the drum plunger before the base can be Withdrawn.

The stem |I1 (Fig, 18) of an old amount key ||8 (Fig. l) overlies the laterally turned upper end of a vertical link |19, whichl is operatively connected to an arm |20 of a bail 2|, loosely journaled on the shaft ||3. Arms |22 of a yoke formed integrally with bail 2| embrace diametrically opposite sides of the anged collar 69 (Figs. 14 and 16), which depends from the' tween pinion 58 and plunger 62, in a Way'similacrV to that described in connection withthe correspending lug ||5 on yoke H4.

Thus, the driving connections between rack A lug |23 turned downwardly from one of 59 and the respective drums 45 and 41 can be manually disabled.

Means is provided for making a permanent record on the new amount tape of items entered in the machine. To this end, the new amount tape is arranged to be punched in every denominational order o'f the machine, at a height above a common reference line proportional to the digit entered in each denominational order. Such a means is'shown in Figs. 3, 4, and 5, as comprising a die |24 rigidlyA connected to horizontal guide bars |25 and |26, which in turn are slidably supported in similar upstanding bearing posts |21, |28, |29 and |33. The unit comprising'the die and its guide bars is normally urged to the right as shown in Figs. 4, and 5, by means. of compression springs |3| and |3|a, which telescope the guide 'barsand act between the posts |28 and Y |30 and collars |32 and |32a xed tothe respective guides in .spaced relation with respect to posts |21 and |29.

The die is operatively connected Vto a rocking, frame including a transverse' shaft |33 journaled in suitable lugs formed integrally with the base, and a cross-bar |34 spaced from and rigidly connected to the shaft |33 by means of arms |35 and |35.

The rear ends of guide bars |25 and |25 are formed with similar downwardly opening slots |31, adapted to receive the cross-bar |34, the slots being of sufficient depth tov allow clearance for the cross-'bar when the frame is in its vertical position as is substantially illustrated in Fig. 4. The frame is adapted to be'rocked inseach cyclic operation of the machine to reciprocateA the die 24 ina punching operation, but in normal practice the punching mechanism operates only when a new amount is being printed on the bill and accumulated in the totalizer 22, and is prevented from operating in other cycles, such as cycles in which old amounts are being printed and accumulated, spacing cycles, and total-taking cycles. The arm |38 is extended above cross-bar 34 to function as a crank, its upper end being provided with a laterally extending crank pin |38. Pivotally Isupported on a rigid part of the machine at |39 is a lever |40, an arm 14| or" which is pivotally connected to aY rearwardly extending pitman |42. A disengageable connection between the pitman |42 and the crank arm I3'.` is provided by a slot |43, which is adapted to receive the crank pin |38.

The driving motor 1B is arranged to rotate the cam |44 through 360 degrees in a clockwise direction as viewed in Figs. 4 and 5, in each cyclic operation of the machine. A roller |45 (Figs. 4 and l0) pivotally supported adjacent the peripheral edge of ghe cam is arranged to contact a cam face |45 of an arm |41 of the lever NU. A plate |48 fixed to the arm |4'J has a laterally turned end |49 defining acam adapted to cooperate with the roller |45 in timed relation with the operation of the la-tter part upon the cam surface |45.

The Pitman |42,is arranged for either manual or automatic engagement with crank pin |38, to

effect a rocking of arm |35, and a'corresponding reciprocation of the frame comprising parts |33,

|34, and the die |24.

Such engagement may be effected manually by means of a key |50 (Fig. 2) the stem of which, |5|, is operatively associated in a well-known manner with a slide |52. 'Ihe slide |52, is normally urged rearwardly by a spring |53, the resistance of which is overcome in depressing the and a iixed stud |51.

The arm is fixed to the right-hand end of a v shaft |58 (Figs. 3 and 4) suitably journaled in the frame of the machine. The opposite end of shaft 4 and 5 by a spring |56 acting between the arm |58 has non-rotatably secured thereto, an armY |59, the free end of which is provided with a pin |60 which projects into a slot |E| (Fig. 4) formed adjacent the rear end of pitman |42. It will be evident thatdeprcssion of the key |50 will move the slide |52 forwardly and thus rock the arm |55 and its associated shaft |58 and arm |59 in a counterclockwise direction to lower the pitman |42 to a position in which its downwardly opening slot |43 will engage the crank pin |38.

Automatic engagement of pitman l|42 with crank arm |36 may be accomplished under control of the laterally movable paper carriage in any desired position of the latter. This mechanism comprises a bell crank |52 (Fig. 4) pivoted at 96 and arranged to be operated by the carriage through a push pin |54. An upwardly and rearwardly extending bracket '55 which is rigid with the slide |52 is adapted to communicate movement from the bell crank to the slide 52 to thus rock the arm |55Y and nnally the pitman |42-, as previously described.

The relationship of the cam surface Mit and the vcammini; end |49 of plate 43 is such thatwhen the lever 43 is rocked by the roller |45, a rapid and positive reciprocation will be imparted to the die |24 as indicated in Fig. 4, near the end of the first half oi the cycle the die is advanced, and at the beginning of the second half the die is retracted.

To prevent displacement of the tape with respect to the die during the punching operation, the latter is formed of spaced plates l5@ and i151 between which the tape is adapted to be fed.

. lized for the purpose of forming records of noncumulative data if desired or to provide for the. entry of amounts in the English currency system. The lowermost hole in the plates and il is superfluous in the present embodiment of the invention.

The tapeis punched in each numerical order by means including a series of punches, one such punch being associated with every numerical order of the machine.

As shown in Figs. 2, 4 and 5, the type bars-i2 are fitted with downwardly extendingtails i to the lower end of each of which tail a plate ti@ is secured. Each of the plates' is formed with a rearwardly extending punch Vfl of such size as to be slidably received in the apertures in plates |66V and |51. As will be noted in` Figs. 4

and 5, the forward ends oi the apertures i353 are beveled to guide the punches thereinto.

When Athe die |24 is moved forwardly in a punching operation as shown in Fig. 4 the relatively stationary punches lll will be caused to penetrate the tape which is held between-the plates of the die as has been explained, and thereafter the springs |3| and |3|a will cooperate with the cam |49 to quicklyY restore the die to its normal position as indicated in Fig. 5.

Referring to the new amount tape shown at the lower right-hand portion of Fig. 19, the four dotted circles near the lower edge of the tape represent zeros, the next higher circle represent 3, the next higher 5, the next higher "8 and the uppermost 9. It will be understood from'the number of dotted circles that the present machine has nine numerical orders.

Now coming to the old amount tape it will be recalled that the machine comprising the present invention is sensitive to the perforations in a tape such as a previously formed new amount tape to automatically enter amounts in the machine. Mechanism eiiective to accomplish such purpose is fully disclosed in Figs. 3, 4 and 5.

A nest of sensing or analyzing pins generally indicated at |12 is arranged to be controlled either manually or automatically to analyze the apertures in a previously punched tape and thus control the extent to which the type bars |2 and their, associated racks 23 and 24 are Apermitted to rise so as to correspondingly regulate the extent of rotation which shall be imparted to the totalizer wheels 22.

The nest of analyzing pins |12 comprises a pin housing or bearing block |13 rigidly connected to the base 33 and extending upwardly therefrom in parallel relation with the axes of the reels, guiding drums, and die |28. A plurality of pins |14 are slidably supported in the bearing block |13, there being a vertical row of pins for each denominational order of the totalizer and ten pins in each such vertical row, so as to provide one pin corresponding to every numerical value on each totalizer wheel from zero to nine. The several pins |14 include a body portion |15 adapted for bearing engagement with the block |13 and a forwardly extending shank |18` of lesser diameter than the body portion |15, which terminates in a anged head |11.

A plate |18, which is operatively supported in spaced parallel relation with respect to the pin bearing block |13, slidably receives the Shanks of the several pins, their heads functioning to limit rearward movement by abutting contact with the forward surface of the plate.

Each of the pins is provided with a spring |19, which telescopes its shank and acts between the rearsurface of the plate |18 and the shoulder dened by its enlarged body portion to normall urge the pins in a rearward direction.

A pair of guide bars and |8| (Fig. 3) are rigidly attached to the plate |18 and extend forwardly through suitable bearings formed in upstanding-bearing posts |82 and |83;

It will be observed from yan examination of Figs. 3 and 4, that rearward movement of the plate |18 will permit the springs |19 to yieldingly project their respective pins rearwardly into a position to overlie a forwardly extending lug |88 formed integrally with the plate |18, which is associated with theend of each type bar tail piece |69. lMovement of the plate |18 to permit such operation of the pins |18 is controlled by mechanism including a frame comprising a transverse shaft |85 journaled in the lower ends of the bearing posts |82 and |83, land rigidly connected to a cross-bar |86 by means of crank arms |81 and |88.

The forward ends of guide bars |89v and [18| orders.

is effected by a crank pin |90 extending laterallyfrom an upwardly extending portion of the arm |88. An arm |9| of a bell crank |92 pivoted on the axis |39 -isnormally urged in a, clockwise direction as viewed in Figs. 4 and 5 by a spring- |9|a. The arm |9| is pivotally connected at |93 to a. longitudinally extending link |94, the upper edge of the link being formed with a slot |95, p

which is adapted to receive the crank pin |90. The free end of an arm |96 of the bell crank |92 is iitted with a-cam roller |91 arranged to follow the peripheral surface of cam |44, so as to rock the bell crank |92 comprising arms |9| and |96 in each cyclic operation of the machine. This rocking movement in turn is communicated to the link |94 to reciprocate the latter.

The link |94 is arranged to be operatively connected to crank pin |90 by either manual or automatic means. The manual connecting means includes a key |98, Figs. 1 and 2, the stem of which |99, Figs. 2 and 5 is e`ective to rock a. crank-like arm 200 in a clockwise direction as .viewed in- Fig. 5 to move a slide 20| forwardly against the action of its spring 202. The slide 20| is provided adjacent its rear end with a stud 203 which is positioned rearwardly of an arm 204 non-rotatably secured to a shaft 205 journaled in the housing 29 as indicated in Fig. 3. A tensile spring 206 acting between the arm and the fixed stud |51 normally tends to maintain the former part in engagement with the stud 203. The opposite end of the shaft 205 has fixed thereto anV thus establish a driving connection with the plate |18.

Fig. 2 shows the machine at rest. When the machine is cycled, the cam |44 will make one revolution in the direction indicated by the arrow in Fig. 2 and stop. During the early portion of the rst half of the cycle, the kworking surface 2|| of the cam |48, acting on the roller |91, imparts a rearward stroke to the link |94, thus allowing the pins |18 to bear against the ,old-

amount tape. Those pins which are opposite apertures in said tape representing digits above zero pass into such apertures, as shown'in Fig. 5, into the path of the lugs |84 in the corresponding numerical orders, so as to limit the upward movement of the type bars and racks in those The old amount is thus caused to be printed on the bill and accumulated in the crossfooting totalizer 22. Near the end of the second half of the cycle, the cam surface 2H ofthe Y cam |44 allows the spring |9|a (Fig. 5) to restore the link |94, crank arm |88, plate |18 and pins |14 to their initial position, as in Fig. 2.

Automatic engagement of link |94 with crank pin |90 may be accomplished under control of the laterally movable paper carriage in any desired position of the latter. This mechanism comprises a bell crank |62a pivotally supported 0n the axis 96 and arranged to be operated by the carriage through a push pin |63. A bracket 20|a rigid with the rearward end of slide 20|, and similar in this instance to the bracket |65 on slide |52, is adapted to communicate movement from the bell crank |62a to the slide 20| and thus rock the arm 204 and nally the shaft 205, and thus arm 201 in a counter-clockwise direction to elevate the forward end of link |94 to position its slot for engagement with crank pin |90.

To prevent displacement of the old amount tape from the plane dened by the surface of the pin bearing |13 a guide plate 2|2 is provided. The guide plate 2| 2 is supported in fixed spaced relation from the'surface of the pin bearing |13 as indicated in Fig. 4, and is formed with a plurality of rows of apertures coinciding in number and axially aligned with the bores in pin bearing As has been previously indicated the plate 20 is normally in position to obstruct the upward path of the pins |5 and must consequently be displaced prior to the taking of a total or the automatic entering of an item in the machine under the control of the old-amount tape. Such displacement of the plate 20 is accomplished automatically as an incident to either manual or automatic operation of the slide 20| for the purpose of analyzing a section of the old amount tape 'through the medium of the pins |14.

Referring to Figures 1, 4 and 5, the plate 20 is pivotally supported at y2|3 upon the upstanding arm 2|4 of a bail 2|5 which in turn is operatively supported on a. transverse shaft 2| 6. An arm 2|1 (Fig. 5) rigid with the bail 2|5 is ncrmally urged in a clockwise direction by a tensile spring 2|8 to hold the detent plate 20 in its rear position and to maintain the lower end of the arm 2I1 in engagement with one arm of a lever 2 9 (Fig. 26) pivoted in the machine frame. The other arm of lever 2|9 lies in the path of a lug 220 (Fig. 5) on the slide 20|. Thus it will be seen that when the key |98 is depressed or when the carriage operates to move the slide 20| forwardly, the lever 2|9 will be turned in a clockwise direction asrviewed in Figure 1, to rock the bail 2|5 in a counter-clockwise direction as viewed in Fig. 5, thus withdrawing the plate 20 from the path of the pins I5.

Hence, after a section of the old amount tape which is to be analyzed, has been operatively positioned with respect to the nest of pins |12, the plate 20will be displaced to permit the type bars to rise until their assiatedL stops |84 contact such of the pins |14 as have been projected through apertures inthe tape. Referring to the old amount tape shown at the lower left-hand portion of Fig. 19, the four holes near the lower edge of the tape represent zeros, the next higher hole represents 2, the next higher 5, the next higher 6, the next higher "7 and the highest 9. It will be seen that all of the numeral type bars of the machine are controlled in their rising movement by the perforations in the old amount tape. It will be understood that the main rock shaft 25 may be'oscillated either manually or under control of the motor 18, to effect such rising movement of the type bars. A motor bar 22| (Fig. A1), may be utilized to energize a t circuit to the motor 18 when the machine is to be power operated. I

1t will be observed in Figure 5 that the punches 1| are vertically voffset from their related stops |84 by an amount substantially equivalent to the vertical dimension of the body of the stop, so that wherever a perforation is made in the tape by a bar which has risen only to the zero position, the aperture so formed will align with one of the lowermost or zero row of pins |15. Thus, when the same tape is employed on the old amount or analyzing side of the machine, pins |15 in the lowermost row will be projected through perfora.. tions made by bars which did not rise above the zero position when the tape was employed on the new amount or recording side of the machine, thereby preventing such bars from rising above the zero position in the automatic old-amountentering operation.

Now coming to the means whereby the totalizer 22 may be controlled either manually or automatcally, in the performance of operations involving addition, subtraction, sub-totaling, final totaling, etc.

The totalizer is rotatably mounted upon a. transverse shaft 225 (Fig. 21), which in turn is supported for sliding movement longitudinally of the machine.

The pinions are moved into and out of mesh with the racks 23 and 24 by means such, for example, as two links 221iY (Figs. 21 to 24), one at each side of the machine. The forward ends 0f links 226 have bearings to receive the ends of the shaft 225, and their rear ends are 'pivoted at 221 to two arms 228, which are rigidly secured to a shaft 229 that is journaled in the frame work of the machine.

The means herein shown for swinging the arms 228, tomove the pinions into and out of mesh with the racks, comprises an arm 230 (Figs. 28 and 29) which is rigid with the right hand arm.l 228 and carries a pin 23| that engages the notched end of an arm 232. The arm 232 is secured upon a short shaft 233 that is journaled in the machine frame. Also fixed to said shaft is an4 arm 234. 235 (Figs. 21 to .24) pivoted at 236, said lever having a cam slot 231 therein to receive a stud 238 on the arm 234. The lower portion of the 'cam slot 231 imparts the meshing and de-meshing movements required in adding, and positive totaling operations, while the upper portion of the cam slot 231 produces the meshing and demeshing move-ments incident to subtracting and negative totaling operations. The lever 235 is swung by means of a link 239 having notches 240 and 24| in its opposite edges. The notch 240 is adapted to receive a stud 242 on the cam lever 235, the notch 24| being adapted to receive a stud 243 on said lever. The studs 242 and 243 are at opposite sides of the axis 236, and hence it will be se-en that when the link 239 is in engagement with the pin 242, vertical movement of thelink 239 will cause reciprocation of the lever 235 to cause operation of the lower' portion of the cam slot 231 on the stud 238; Whereas, when the link 239 is in engagement with the pin 243, the lever 235 will be swung to cause operation oi" the upper portion of the cam slot 231 on the stud 238. The link 239 is pivoted to one end of a rocker arm 2,44, which is pivoted in the machine frame at 245. rocker arm 244 is .pivoted to a link 246, having a notch 241 adapted to receive a pin 248 on a lever 249. The las*v mentioned lever is pivoted on the axis 250 in the machine frame and has a pin and slot connection with an arm 25| which is pivoted at 252.

The means for swinging the lever 249 comprises The arm 234 is swung by means of a lever.

The other end of the an arm 253 xed upon the main rock shaft 25. On said arm is pivoted at 254, a pawl 255 having two shoulders 256 and 251, and a hook 258. The pawl 255 is influenced by tensile spring 259. thelever 249 is a pin 260 arranged to be engaged by the shoulder 255. On the arm 25| is a pin 26| arranged for engagement by the shoulder`251.

262, Figure 26, is a detent pivoted on the frame work at 2620.. Ithas two cam notches to receive a pin 262D carried by the rocker arm 244. A spring 262e connected to the detent holds the latter in engagement with the pin. This springactuated detent helps to move the cam lever 235 suddenly into its totalizer meshed, or its totalizerdemeshed position, and to hold it in such position.

Referring now to Figure 21, which shows the parts in initial position, the pinions being in mesh with the adding racks 23: When the main rock shaft begins its forward movement, the arm 253 swings in the direction indicated by the arrow in Figure 21, whereupon the shoulder 256 engaging the pin 260 (assisted by the spring detent 262) causes the lever 249 to turn counterclockwise into the position shown in Figure 22, whereby the link 246 is lifted and the link 239 lowered, thereby swinging the cam lever 235 downwardly and thus promptly placing the pinions 22 in neutralposition between the two sets of racks. The pinions are thus moved out of mesh with the racks 23 just before the racks begin rising to the extent corresponding to the item. set up on the keyboard. As the arm 253 completes its upward stroke, the surface 263 on the pawl 255, comes into engagement with the pin 26| on the arm 25|, causing the pawl 255 to assume-the position shown in Figure 22.

On the return stroke of the rock shaft 25, the

the pin 26| (and assisted by the spring detent 262), swings the arm 25| into the `position shown in Figure 21, thereby, through the connections previously described, swinging cam lever 235 to the position shown in Figure 21, and thus return.- ing the pinions 22 into mesh with the racks 23. This occurs promptly after the commencement of the return stroke of the arm 253, and inthe continuing operation of the machine the racks 23 descend, therebyturning the pinions 22 to accumulate thereon the amount set up in the keyboard.

Any desired means may be used to prevent casual rotation of the pinions while they are out of mesh with the racks, as, for example, that fully disclosed in my Patent No. 1,965,611, dated July 10, 1934.

When a positive total (whether subtotal or nal total) is to be printed, and/or recorded on a. tape, the pinions are retained in mesh with the racks 23 during the upward movement thereof. The means whereby the upward movement of the arm 253 is rendered ineffective to withdraw the pinions from the racks 23 will now be described, reference being made particularly to Figure 26. The total key 264 and the subtotal key 265 are carried by key stems 266 and 261 lrespectively. The lower ends of these stems are arranged to engage independenty balls 268 and 269, pivoted at 210 in the machine frame. bails 268 and 269 are arranged to engage'lugs 21| and 212 on a total slide 213 and a subtotal slide 214, respectively. Depression of a key 264 or 265 causes forward movement of the corresponding slide 213 or 214. On the total slide 213 is an upstanding portion 215, which is yieldingly connected through a tension spring 216 to an arm 211 pivoted in the machine frame at 218. The spring 216 normally holds a pin 219 on the arm 211 against a lug 280 on the total slide. Rigid with the arm 211 is an arm 28|, which is connected by means of a link 282 to the lower end of the link 246. It will be seen that depression of the total key 264 will cause the arms 211and 28| to swing forward to withdraw the notch 241 from'the pin 248, and to place the 'edge 283 of the link 246 against a pin 284 on the lever 249,` the spring 216 yielding to permit the key 264 to complete its downwardmovement.

Inthe ensuing cycle of operations of the machine, the arm, 253 swings upwardly, swinging the lever 249 counterclockwise idly without imparting any movement to the link 246, hence the pinions remain* in mesh with the racks as the latter rise. `As the lever 249 completes its counterclockwise movement, the pin 284 comes into registry with a notch 285 in the link 246, whereupon the spring 216 moves the notch into engagement with the pin. When the lever 253 starts on its return stroke, the shoulder 251 of the pawl -totalslide 214 forward. On said slide is a post 286, which engages a pin 281 on the total slide and thus causes the link 246 to be disengaged from the pin 248 and engaged withv the pin 284 as described in connection with the operation of taking a nal total. Since, however, the pinions are not to becleared, they should remain in mesh with the racks 23 during the descent of the latter. 288 is provided on the upper end of post 286 to engage a stud 289 on an arm 290 pivoted on the axis 29|. Rigidwith the arm 290 is an arm 292 carrying a stud 293. When the subtotal slide 214 is drawn forward, the cam 288 places the stud 293 in position to depress the pawl 255, when the arm 253 approaches its upper position.

Consequently, when the arm 253 makes its return stroke, the shoulder 251 of the pawl is unable to engage the pin 26| and, therefore, the pinions are not withdrawn from the racks 23. Near the end of the downward stroke of the arm 253, the hook 258 engages the pin 260, and as the arm 253 completes its downward movement, the hook 258 turns the lever 249 clockwise, thereby lifting the link 246, lowering the link 239, and lowering the cam arm 235, and thus moving the pinions 22 into neutral position, this occurring a moment after the racks have returned to their normal down position.

When a total is to be taken, whether a final total or a subtotal, the detent plate 28 must be moved forward to permit rising movement of those of the pins I5 which are connected to type bars which are required in the printing of the total or subtotal. For this purpose, each of the slides 213 and 214 (Fig. 26) has a lug 295 which, when the slide is moved forward, engages the right hand arm of the lever 2|9 to rock bail 2|5 in a counter clockwise direction as viewed in Figure 26, thereby withdrawing detent plate 20 from a position to block the pins l5- The total key and the subtotal key, together To effect this result, a cam surface with a number o'f other controlling keys, are arranged to be latched in a depressed position during a given cycle of operations of the machine by means including a slide 296 (Fig. 27), the function and particulars of which are fully described in the beforementioned application Serial No. 581,800.

.Now coming to the use of the machine in connection with the accumulation of subtractive amounts:

Referring particularly to Figure 21; after adding or taking a positive total, the link 239 is in engagement with the pin 242, the pinions 22 being then in mesh with the adding racks 23. Reciprocation of the link 239 will therefore shift the pinions intol and out of mesh with those racks. When an amount is to be subtracted, the link 239 is shifted out of engagement with the pin 242 and into engagement with the pin 243. The means for thus shifting the link 239 comprises an arm 300, Figure 27, pivoted on the axis 30| and having a forked lower endto engage a pin 302 on the link 239. Rigid with the arm 300 is an arm 303, the lower end of which is yieldingly connected in any preferred manner to a subtraction slide 304. A spring 305 normally holds the subtraction slide 304 in its rear or ineffective position. The slide is pulled forward into effective position by means of a subtraction key 30G having a stem 301which is arranged to operate a bail 308 that engages an upstanding lug 309 on the front end of the subtraction slide. When the subtraction key is depressed, the slide 304 is drawn forward and held forward through the latching of the subtraction key in depressed position, thereby shifting the link 239 until the edge 3|0 of the link stops against the pin 243, the pin 242 being still within the notch 240. In the ensuing forward stroke of the rock shaft 25, the link 239 is moved downwardly thereby swinging the lever 235 into position to move the pinions 22 out of mesh with the adding racks 23. As soon as the pin 243 is raised suiiiciently to registerwith the notch 24|, the link 239 .is yieldingly moved to place said notch in engagement with said pin 243. In the return stroke of the rock shaft 25 the' link 239 is lifted, thereby swinging the lever 235 down, so as to cause the upper portion of the cam slot 231 to act upon the roller 238, whereby the pinions 22`are placed in mesh with the subtraction racks 24 before the latter start to descend.

The machine may incorporate automatic means, such as are fully disclosed in application Serial No. 581,800, to automatically cause the pinions 22 to mesh with the subtracting racks 24 when a negative total exists in the totalizer, likewise the machine may be equipped with any desired form of mechanism to automatically introduce al fugitive one.

The lateral movement of the paper carriage may be utilized to automatically control the totaling, subtotaling, subtracting and other functions of the totalizer represented by the pinions 22: The totalizer may automatically be conditioned for a final totaling operation by effecting forward movement of the slide 213 (Fig. 26) under control of the carriage. Such forward movement is accomplished by means of a bell crank 3H, pivoted on the axis 96, and interposed between the total slide 213 and a push rod 3|2.v The rod 3|2 is arranged to be depressed by one of the nest of selectors |02.l It will be obvious that a stop lug in any one of the control elements |01 and associated with push rod 3|2,

will function to depress said push rod 3|2, thereby moving the slide 213 forwardly to condition themachine for the taking of a final total.

The carriage is eifective to move the subtotal slide 214 (Fig.`26) through the medium of a bell crank 3| 3 pivoted on the axis v96. A -push rod 3 i4 transmits power from one of the selectors |02 to the bell crank 3|3. As is the case in the taking of final totals, a stop lug in any one of the control elements |0| on the carriage, in the plane of the selector associated with push rod 3|4, will function to move the slide 214 forwardly, thus conditioning the machine for the taking of a subtotal from the totalizer pinions 22.

The carriage control of the subtraction slide 304 .(Fig. 27), is effected by a bell crank 3|5, pivoted on the axis 96, and interposed between the rear end of slide 304 and a push rod 3|6 which underlies one of the selectors |02. Thus, it will be apparent that a stop lug on the carriage, positioned in the plane of the selector associated with push rod 3|6 will function to move the slide 304 forwardly, thereby automatically conditioning the machine for asubtracting operation.

It will be understood that the machine may be automatically operated under control of the carriage to eifect a spacing cycle. Means effective to accomplish this end are well known in the art, and reference may be had to Sundstrand application Serial No. 581,800, for a full description of such mechanism. A.

Means is preferably provided for deprising the carriage of control of the Various machine functions. Herein I have shown means for that purpc-se which is similar to that fully described in my application Serial No.- 581,800. Fig. 1 of the present application indicates at 810 va normalizer key which is arranged to depress the forward arm (not shown) of a lever 816 (Fig. 2) and thus raise the rear arm of .said lever. Said rear arm is connected to a slide plate 819 which is guided for vertical movement in the machine frame. Upward movement of the slide plate 819 from the positio-n illustrated in Fig. 2 disables the escapement mechanism as explained in application Serial No. 581,800, so that the carriage will not automatically tabulate to the next columnar position after a cycle of operations of the machine.

As shown in Fig. 2 the slide plate 819 is located in a plane extending transversely of the planes of the selectors |02 and beneath the free ends of said selectors. The length of the upper edge of the slide plate 819 equals or exceeds the width of the series of selectors. When the slide plate is raised through depression of the normalizer key 810, the upper edge of said plate engages the lower sides of the free ends of the selectors |02 and holds them against depression by stop lugs on the control elements |0| on the paper carriage.

Means similar to that shown in yapplication Serial No. 581,800 may be provided for latching the normalizer key 810 in depressed position.

Preliminary to undertaking a series of accounting operations, such for example as are involved in the preparation of gas bills, the new and old amount keys |08 and H8 are released to` permit withdrawal oflthe base section 33 from the machine.

Of course, it will be understood that full utilization of the facilities of the machine depends upon the simultaneous use of both new and old amount tapes, but the first series of operations are necessarily employed in preparing the iii-st 

